How do we walk? (physics force and laws of motion).
Answers
"Newton's third law states that every action has an equal and opposite reaction.
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Newton's third law of motion
When we walk on the ground then our foot pushes the ground backward and in return the ground , forces our foot forward. The forward reaction exerted by the ground on our foot makes us to walk forward. However, when the ground is slippery it becomes very difficult to walk. This is due to the fact that on slippery ground the friction is much less and we cannot exert a backward action force on slippery ground which would produce a forward reaction force on us .
It is an example of Newton's third law of motion which states that every action has an equal and opposite reaction .
Action and reaction forces are equal in magnitude but they do not produce equal acceleration in the two bodies on which they act . This is because the two bodies on which action and reaction forces act usually have different masses . So , the acceleration produced will be more in the body having less mass whereas the acceleration produced will be less in the body having more mass .